AC Theory Equations

Front

2 π f L

Back

Inductive Reactance X_L

Front

Back

Capacitive Reactance Xc

Front

Back

Series RL or RC Impedance Z

Front

Back

Power Factor

Front

Series RLC Impedance Z

Back

√R² + (X_L - X_C)²

Front

Supply Voltage of an AC Circuit Vs

Back

I x Z

Front

√(KW² + KVAr²)

or    I x Vs

Back

Apparent Power KVA

Front

√(KVA² - KVAr²)

or    I x V x cos 𝚹

Back

True, Real or Active Power KW

Front

√(KVA² - KW²)

Back

Reactive Power KVAr

Front

Back

Inductance L